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/*-
 * Copyright (C) 2002, 2018, Oracle and/or its affiliates. All rights reserved.
 *
 * This file was distributed by Oracle as part of a version of Oracle Berkeley
 * DB Java Edition made available at:
 *
 * http://www.oracle.com/technetwork/database/database-technologies/berkeleydb/downloads/index.html
 *
 * Please see the LICENSE file included in the top-level directory of the
 * appropriate version of Oracle Berkeley DB Java Edition for a copy of the
 * license and additional information.
 */

package com.sleepycat.je.utilint;

/**
 * A boolean JE stat.
 */
public class BooleanStat extends Stat {
    private static final long serialVersionUID = 1L;

    private Boolean value;

    public BooleanStat(StatGroup group, StatDefinition definition) {
        super(group, definition);
    }

    @Override
    public Boolean get() {
        return value;
    }

    @Override
    public void set(Boolean newValue) {
        value = newValue;
    }

    @Override
    public void add(Stat otherStat) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void clear() {
        value = false;
    }

    @Override
    public Stat computeInterval(Stat base) {
       return super.copy();
    }

    @Override
    public void negate() {
    }

    @Override
    protected String getFormattedValue() {
        return value.toString();
    }

    @Override
    public boolean isNotSet() {
        return false; // We can't tell if a boolean is not set.
    }
}